package com.helios.other;

import org.junit.Test;

/**
 * JDK 相关的内容.
 */
public class JDK {

    @Test
    public void identity() {
        Object obj = new Object();
        System.out.println(obj);
        System.out.println(System.identityHashCode(obj));
        System.out.println(Integer.toHexString(System.identityHashCode(obj)));
    }
}
